buildroot: Import all buildroot & kernel config

Signed-off-by: Sylvain Munaut <[email protected]>

buildroot/board/ice40linux_vexriscv/linux.config

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+CONFIG_SECTION_MISMATCH_WARN_ONLY=y
+
+# Architecture
+CONFIG_ARCH_DEFCONFIG="arch/riscv/configs/defconfig"
+CONFIG_ARCH_RV32I=y
+CONFIG_RISCV_ISA_M=n
+CONFIG_RISCV_ISA_A=y
+CONFIG_RISCV_ISA_C=n
+CONFIG_FPU=n
+CONFIG_SMP=n
+CONFIG_STRICT_KERNEL_RWX=n
+CONFIG_EFI=n
+CONFIG_HVC_RISCV_SBI=y
+
+CONFIG_HZ_100=y
+CONFIG_HZ_250=n
+CONFIG_HZ=100
+
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_RD_GZIP=y
+CONFIG_RD_BZIP2=y
+CONFIG_RD_LZMA=y
+CONFIG_RD_XZ=y
+CONFIG_RD_LZO=y
+CONFIG_RD_LZ4=y
+
+# IO
+CONFIG_MQ_IOSCHED_KYBER=n
+
+# Time
+CONFIG_PRINTK_TIME=y
+
+# Clocking
+CONFIG_COMMON_CLK=y
+
+# Interrupts
+CONFIG_IRQCHIP=y
+CONFIG_OF_IRQ=y
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_LITEX_VEXRISCV_INTC=y
+
+# No network
+CONFIG_NET=n
+
+# Serial
+CONFIG_SERIAL_EARLYCON_RISCV_SBI=y
+CONFIG_SERIAL_NO2UART=y
+CONFIG_SERIAL_NO2UART_CONSOLE=y
+
+# GPIO
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIOLIB=y
+
+# PWM
+CONFIG_PWM=y
+
+# LEDs
+CONFIG_NEW_LEDS=y
+
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_CLASS_FLASH=y
+CONFIG_LEDS_CLASS_MULTICOLOR=y
+
+CONFIG_LEDS_BLINK=y
+CONFIG_LEDS_PWM=y
+CONFIG_LEDS_USER=y
+CONFIG_LEDS_NO2ICE40_RGB=y
+
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+CONFIG_LEDS_TRIGGER_ONESHOT=y
+CONFIG_LEDS_TRIGGER_MTD=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_BACKLIGHT=y
+CONFIG_LEDS_TRIGGER_CPU=y
+CONFIG_LEDS_TRIGGER_ACTIVITY=y
+CONFIG_LEDS_TRIGGER_GPIO=y
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
+CONFIG_LEDS_TRIGGER_TRANSIENT=y
+CONFIG_LEDS_TRIGGER_PANIC=y
+CONFIG_LEDS_TRIGGER_PATTERN=y
+CONFIG_LEDS_TRIGGER_AUDIO=y
+CONFIG_LEDS_TRIGGER_TTY=y
+
+# SPI
+CONFIG_SPI=y
+CONFIG_SPI_LITESPI=n
+CONFIG_SPI_SPIDEV=y
+CONFIG_SPI_NO2SPI_SIMPLE=y
+
+# I2C
+CONFIG_I2C=y
+CONFIG_I2C_CHARDEV=y
+
+# Hardware monitoring
+CONFIG_HWMON=n
+
+# Framebuffer
+CONFIG_FB=n
+
+# Flash
+CONFIG_MTD=y
+CONFIG_MTD_SPI_NOR=y
+CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=n
+
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_PARTITIONED_MASTER=y
+
+CONFIG_MTD_UBI=y
+CONFIG_MTD_UBI_WL_THRESHOLD=4096
+CONFIG_MTD_UBI_BEB_LIMIT=20
+
+# MMC
+CONFIG_MMC=y
+CONFIG_MMC_SPI=y
+
+# Input
+CONFIG_INPUT_KEYBOARD=n
+CONFIG_INPUT_MOUSE=n
+
+CONFIG_SERIO_LIBPS2=n
+
+# No USB
+CONFIG_USB_SUPPORT=n
+
+# .config in kernel
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+
+# Filesystem
+CONFIG_TMPFS=y
+
+CONFIG_UBIFS_FS=y
+CONFIG_UBIFS_FS_LZO=y
+CONFIG_UBIFS_FS_ZLIB=y
+CONFIG_UBIFS_FS_ZSTD=y
+CONFIG_UBIFS_FS_XATTR=y
+CONFIG_UBIFS_FS_SECURITY=y
+
+# Other
+CONFIG_VIRTIO_MENU=n
+CONFIG_VHOST_MENU=n
+CONFIG_IOMMU_SUPPORT=n

buildroot/board/ice40linux_vexriscv/rootfs_overlay/etc/motd

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+       _ ______________ __  ____
+      (_) ____/ ____/ // / / __ \
+     / / /   / __/ / // /_/ / / /
+    / / /___/ /___/__  __/ /_/ /
+   /_/\____/_____/  /_/  \____/
+               / /   (_)___  __  ___  __
+              / /   / / __ \/ / / / |/_/
+             / /___/ / / / / /_/ />  <
+            /_____/_/_/ /_/\__,_/_/|_|
+
+   32-bit RISC-V Linux running on iCE40
+   - CPU   : VexRiscv
+   - SoC   : no2soc
+   - Board : iCEbreaker + Quad-HyperRAM PMOD
+

buildroot/board/ice40linux_vexriscv/rootfs_overlay/etc/profile

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+export PATH="/bin:/sbin:/usr/bin:/usr/sbin"
+
+if [ "$PS1" ]; then
+	if [ "`id -u`" -eq 0 ]; then
+		export PS1='\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\# '
+	else
+		export PS1='\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
+	fi
+fi
+
+export PAGER='/bin/more'
+export EDITOR='/bin/vi'
+
+# Source configuration files from /etc/profile.d
+for i in /etc/profile.d/*.sh ; do
+	if [ -r "$i" ]; then
+		. $i
+	fi
+done
+unset i

buildroot/configs/ice40linux_vexriscv_defconfig

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+# Target options
+BR2_riscv=y
+BR2_RISCV_32=y
+
+# Instruction Set Extensions
+BR2_riscv_custom=y
+BR2_RISCV_ISA_CUSTOM_RVM=n
+BR2_RISCV_ISA_CUSTOM_RVA=y
+BR2_RISCV_ISA_CUSTOM_RVC=n
+#BR2_RISCV_ISA_CUSTOM_RVF=y  # Uncomment to enable FPU
+#BR2_RISCV_ISA_CUSTOM_RVD=y  # Uncomment to enable FPU
+BR2_RISCV_ABI_ILP32=y
+
+# GCC
+BR2_GCC_VERSION_10_X=y
+
+# System
+BR2_TARGET_GENERIC_GETTY=y
+BR2_TARGET_GENERIC_GETTY_PORT="console"
+
+# Filesystem
+BR2_TARGET_ROOTFS_CPIO=y
+
+# Kernel
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_GIT=y
+BR2_LINUX_KERNEL_CUSTOM_REPO_URL="git://github.com/smunaut/iCE40linux-kernel.git"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="5f5c810dfa05a0dc45cb6c11ca1468d32d019de0"
+BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_ICE40LINUX_VEXRISCV_PATH)/board/ice40linux_vexriscv/linux.config"
+BR2_LINUX_KERNEL_IMAGE=y
+
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_12=y
+
+# Target
+BR2_TARGET_GENERIC_HOSTNAME="ice40"
+BR2_TARGET_GENERIC_ISSUE="Welcome to iCE40linux"
+BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW=n
+
+# Rootfs customisation
+BR2_ROOTFS_OVERLAY="$(BR2_EXTERNAL_ICE40LINUX_VEXRISCV_PATH)/board/ice40linux_vexriscv/rootfs_overlay"
+
+# Games
+BR2_PACKAGE_ASCII_INVADERS=y
+BR2_PACKAGE_XORCURSES=y
+
+# Micropython
+BR2_PACKAGE_MICROPYTHON=y
+BR2_PACKAGE_MICROPYTHON_LIB=y
+
+# No need for random stuff slowing boot
+BR2_PACKAGE_URANDOM_SCRIPTS=n
+
+# Extra packages
+#BR2_PACKAGE_DHRYSTONE=y
+#BR2_PACKAGE_MICROPYTHON=y
+#BR2_PACKAGE_SPIDEV_TEST=y
+#BR2_PACKAGE_MTD=y
+#BR2_PACKAGE_MTD_JFFS_UTILS=y
+
+# Crypto
+#BR2_PACKAGE_LIBATOMIC_OPS_ARCH_SUPPORTS=y
+#BR2_PACKAGE_LIBATOMIC_OPS=y
+#BR2_PACKAGE_OPENSSL=y
+#BR2_PACKAGE_LIBRESSL=y
+#BR2_PACKAGE_LIBRESSL_BIN=y
+#BR2_PACKAGE_HAVEGED=y
+
+# Generate UBIFS Root
+BR2_TARGET_ROOTFS_UBI=y
+BR2_TARGET_ROOTFS_UBI_PEBSIZE=0x10000
+BR2_TARGET_ROOTFS_UBI_SUBSIZE=0
+BR2_TARGET_ROOTFS_UBI_OPTS=""
+BR2_TARGET_ROOTFS_UBIFS=y
+BR2_TARGET_ROOTFS_UBIFS_LEBSIZE=0xff80
+BR2_TARGET_ROOTFS_UBIFS_MINIOSIZE=0x1
+BR2_TARGET_ROOTFS_UBIFS_MAXLEBCNT=256
+BR2_TARGET_ROOTFS_UBIFS_RT_LZO=y
+BR2_TARGET_ROOTFS_UBIFS_NONE=y
+BR2_TARGET_ROOTFS_UBIFS_OPTS=""

buildroot/external.desc

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+name: ICE40LINUX_VEXRISCV

buildroot/external.mk

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+include $(sort $(wildcard $(BR2_EXTERNAL_ICE40LINUX_VEXRISCV_PATH)/package/*/*.mk))